diff options
| -rw-r--r-- | include/linux/dmaengine.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h index 4ca9cf73ad3f..bfcdecb5d87a 100644 --- a/include/linux/dmaengine.h +++ b/include/linux/dmaengine.h @@ -621,6 +621,11 @@ static inline int dmaengine_slave_config(struct dma_chan *chan, (unsigned long)config); } +static inline bool is_slave_direction(enum dma_transfer_direction direction) +{ + return (direction == DMA_MEM_TO_DEV) || (direction == DMA_DEV_TO_MEM); +} + static inline struct dma_async_tx_descriptor *dmaengine_prep_slave_single( struct dma_chan *chan, dma_addr_t buf, size_t len, enum dma_transfer_direction dir, unsigned long flags) |